State Senator Loses Support of Local G.O.P.

Librado Romero/The New York Times
Senator James Alesi, one of four New York Republicans to vote in favor of same-sex marriage, is unlikely to receive the nomination of a crucial committee in his district.

ALBANY — Senator James S. Alesi, one of four New York State Republicans who voted in favor of same-sex marriage last year, is unlikely to receive the nomination of the main Republican committee in his district, setting the stage for a difficult re-election race that could have implications in the fight for control of the State Senate.

Two Republicans in Monroe County, where a majority of Mr. Alesi’s district sits, said that Mr. Alesi, an eight-term senator, had no support from local party leaders, in large part because of a lawsuit that he filed last year against two of his constituents and that many considered frivolous. The Republicans, who requested anonymity to discuss a developing process, said that Mr. Alesi’s support of same-sex marriage also was a factor, but that it was not decisive.

William D. Reilich, an assemblyman who is chairman of the Monroe County Republican Party, said town leaders told him they were not behind Mr. Alesi.

“They’ve expressed to me it would be difficult for the senator to receive their towns’ endorsements,” Mr. Reilich said.